CN211233944U - Module structure wall of high-temperature heating furnace - Google Patents
Module structure wall of high-temperature heating furnace Download PDFInfo
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- CN211233944U CN211233944U CN201921497935.XU CN201921497935U CN211233944U CN 211233944 U CN211233944 U CN 211233944U CN 201921497935 U CN201921497935 U CN 201921497935U CN 211233944 U CN211233944 U CN 211233944U
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Abstract
The utility model provides a modular structure wall body of high temperature heating furnace, it makes the furnace wall inner wall radiation coefficient of high temperature heating furnace improve by a wide margin, the obvious reinforcing of heat transfer efficiency in the stove, energy saving and emission reduction, slow down the ageing process of furnace wall, increase furnace wall life. It includes predetermined brickwork main truss, furnace roof truss, its characterized in that: the utility model discloses a furnace roof truss, including furnace roof truss, connection I-steel, ceramic fiber cotton module, ceramic fiber cotton felt, furnace roof truss, connection I-steel, the connection I-steel that has set firmly the correspondence on the bottom surface of furnace roof truss respectively, the bottom of connecting the I-steel articulates the top joint structure that has the outer screw rod of hoist and mount, and the upper surface equipartition of ceramic fiber cotton module has the outer screw rod of hoist and mount, the ceramic fiber cotton module is installed through the outer screw rod of hoist and mount the lower surface of furnace roof truss, and with the lower surface of connecting the I-steel leaves the clearance, and ceramic fiber cotton felt lays in the clearance region between the lower surface of ceramic fiber.
Description
Technical Field
The utility model relates to a technical field of the heating furnace structure of heating specifically is a modular structure wall body of high temperature heating furnace, the utility model also provides an installation method of this modularization wall body.
Background
At present, the furnace wall material of the ethylene cracking furnace mostly adopts ceramic fiber cotton, and the furnace walls of high-temperature heating furnaces such as steel heating furnaces, ceramic heating furnaces and the like are mostly made of refractory bricks and high-temperature-resistant pouring materials.
The walls of high-temperature heating furnaces such as ceramic fiber cotton, refractory bricks and high-temperature-resistant casting materials have the following common defects:
1) the heat radiation coefficient is small, so that the radiation heat transfer efficiency of the inner wall of the furnace is low;
2) under the long-term action of high-temperature heat flow environment in the furnace, crystallization and pulverization appear from outside to inside, and the service life of the furnace wall is reduced.
Compared with the ceramic fiber cotton furnace wall, the refractory brick and the high-temperature resistant castable furnace wall also have the following defects:
1) the heat insulation performance is poor, the heat insulation effect is poor, the thickness of the furnace wall needs to be increased by about 50 percent to achieve the same heat insulation effect as the ceramic fiber cotton furnace wall, the occupied area of the furnace is increased, the construction requirement is high, and more labor is consumed.
2) The furnace wall thickness increases, and then the furnace wall total volume is also big to furnace wall thermal capacity is big, therefore the stove is igniteed and is heaied up, the blowing out cooling process not only waste heat energy still increases consuming time, the normal production of mistake stove.
3) Cracks can appear after the furnace is in service for a certain period, and high-temperature flame in the furnace can break out of the cracks, so that heat energy waste is caused.
For refractory bricks and refractory castable furnace walls, the traditional repair method is to dismantle the damaged part and adopt new bricks to build or use low cement castable to carry out integral casting on the dismantled part.
Patent publication (publication) No.: CN201215439Y discloses a "wall repairing structure of walking beam furnace", wherein the structure and maintenance method of the wall repairing structure are advanced by a step compared with the conventional maintenance method, but only the maintenance speed is increased without changing the nature of the furnace wall, i.e. no contribution is made in the aspects of prolonging the service life of the furnace wall and improving the radiation heat transfer efficiency of the furnace inner wall surface.
Patent publication (publication) No.: CN205066456U discloses "novel prevent burning through fire-resistant heat insulation furnace wall for forging furnace", and provides one kind and can freely adjust thickness, reduces the kind of required resistant firebrick, reduces the construction degree of difficulty, labour cost, avoids the insulating layer to burn through, guarantees that the outer low temperature of steel sheet of stove is with novel prevent burning through fire-resistant heat insulation furnace wall for forging furnace. Specifically, the cross section of the furnace wall is sequentially provided with a fiber blanket heat insulation three layer, a machine-made fiber board heat insulation two layer, a diatomite brick heat insulation one layer, a clay brick fire resistance two layer and a castable fire resistance one layer from outside to inside, namely the inner side of a steel plate layer. Although the utility model described in the literature contributes to preventing the furnace wall from being burnt, the high temperature environment in the furnace is still kept in a straight surface due to the castable refractory layer, so that the problem of cracking and surface differentiation of the castable refractory layer are not fundamentally changed, and the radiation heat transfer performance of the inner wall of the furnace is not changed.
In order to improve the radiation heat transfer efficiency of the inner wall of the high-temperature heating furnace, the energy-saving coating has a variety in recent decades, and although the use temperature, the technical performance and the use effect are different, the obvious energy-saving effect is acknowledged. The big problem of spraying the energy-saving coating on the inner wall of the high-temperature heating furnace is that the coating is easy to fall off and becomes the bottleneck of popularization and application. The falling-off reason is that apart from the technical problems of the coating product, another main reason is that furnace wall materials such as ceramic fiber cotton, refractory bricks, high-temperature resistant castable and the like are gradually crystallized and pulverized in a long-term straight furnace high-temperature environment, so that the shearing stress between the coating and the wall surface of the furnace wall is damaged, and the coating falls off.
Patent application publication No.: CN109535984A discloses 'an ultra-high temperature infrared radiation heat-insulating energy-saving coating', which can resist high temperature of 1800 ℃, and the selected filler electric melting white corundum micro powder and plate-shaped corundum micro powder also have strong high temperature resistance, so that on one hand, the high temperature resistance of the coating can be ensured, and on the other hand, the coating is tightly connected with the inner wall of the furnace wall to ensure that the coating does not fall off, because most of the inner wall of the high-temperature furnace is built by corundum hollow ball bricks, and materials with the same property are easy to mutually permeate and sinter into a whole under the condition of no occurrence of low-melting matters. However, the coating described in the above documents still does not solve the problem that the inner wall of the furnace wall gradually crystallizes and powders in the high temperature environment in the straight furnace for a long time, thereby causing the coating to fall off.
Patent publication No.: CN2575107Y discloses a spacer for high temperature heating furnace, which is formed by stacking arc-shaped bars or plates made of tungsten powder or molybdenum powder or doped tungsten and molybdenum powder, and finally building the bars or plates into a cylinder like a wall building body to form the spacer for the heating furnace, so as to separate the sintering material from the refractory material, avoid the pollution of the sintering material, reduce the abrasion of the refractory material, and prolong the service life of the refractory material. However, the heating furnace spacer provided by the patent document does not have the advantage of improving the radiation heat transfer performance of the inner wall of the furnace, and the technical background of the heating furnace spacer is provided for tungsten and molybdenum induction sintering furnaces, and does not indicate whether the heating furnace spacer is suitable for high-temperature heating furnaces in the industries of steel, ceramics and petrochemicals.
Patent publication No.: CN2575107Y, it provides a tubular heating furnace's energy-conserving method, has solved the technical problem that can't reliably install numerous black body elements that have certain weight on the softer refractory fiber furnace wall of lighter to realized energy-conserving effectual, running cost low, the utility model purpose of being convenient for realize. The black body element is hollow inside, one end of the black body element is provided with an opening pointing to the center of a hearth, and the other end of the black body element is embedded into a refractory fiber furnace lining of a furnace wall in a conical shape. However, the blackbody element provided in the patent document has the following drawbacks: the black body element makes the originally plane inner wall of the furnace wall become largely uneven, and reduces the radiation heat transfer and convection heat transfer effects in the furnace, and the black body element material and the binder adopt the prior art in the field, and have no original contribution to improving the energy-saving effect.
Disclosure of Invention
To the problem, the utility model provides a modular structure wall body of high temperature heating furnace, its stove wall inner wall radiation coefficient that makes high temperature heating furnace improves, in the stove heat transfer efficiency obviously strengthens, energy saving and emission reduction, slows down the ageing process of stove wall, increases stove wall life by a wide margin.
A modular structure wall body of high temperature heating furnace, its technical scheme is like, and it is including predetermined brickwork main truss, furnace roof truss, its characterized in that: the furnace roof truss structure is characterized in that corresponding connecting H-beams are fixedly arranged on the bottom surface of the furnace roof truss respectively, the bottom of each connecting H-beam is hung with a top clamping structure of a hoisting outer screw rod, the upper surface of a ceramic fiber cotton module is uniformly provided with the hoisting outer screw rods which protrude upwards, the ceramic fiber cotton module is arranged on the lower surface of the furnace roof truss through the hoisting outer screw rods, a gap is reserved between the ceramic fiber cotton module and the lower surface of the connecting H-beam, a ceramic fiber cotton felt is laid in a gap area between the ceramic fiber cotton module and the lower surface of the connecting H-beam, and a furnace wall inner protective lining is fixedly arranged on the lower surface of the ceramic; the furnace wall main truss structure comprises a furnace wall main truss, furnace wall inner trusses and wall modules, wherein the furnace wall main truss structure comprises a plurality of groups of furnace wall inner trusses, the furnace wall inner trusses are arranged in the furnace wall main truss structure, the furnace wall inner trusses are arranged on the inner sides of the furnace wall main trusses, first connecting pieces are arranged in the furnace wall inner trusses in an array mode, the inner sides of the first connecting pieces are fixedly connected with the outer surfaces of the wall modules in corresponding shapes respectively, furnace.
It is further characterized in that:
a plurality of steel beam frameworks are uniformly distributed in the surface area range of the shell steel plate, the inner surfaces of the thicknesses of the adjacent steel beam frameworks are covered with corresponding shell steel plates, the inner end of the thickness of each steel beam framework is fixedly connected with a ceramic fiber cotton module at a corresponding position through a second connecting piece, a ceramic fiber cotton felt is filled between the outer surface of the ceramic fiber surface module and the inner surface of the shell steel plate, and the inner surface of the ceramic fiber cotton module is fixedly provided with the furnace wall inner protective lining;
the steel beam framework is in a stable plane truss structure formed by riveting and welding angle steel, square steel, flat steel, pipes and the like, the shell steel plate is welded and riveted on the inner side surface area of the steel beam framework, the inner end of the thickness of the steel beam framework is riveted or welded with the outer end of the second connecting piece in an array manner, and the inner end of the second connecting piece is fixedly connected with a corresponding number of ceramic fiber cotton modules;
the second connecting piece is a bolt or a screw made of high-temperature resistant materials;
the furnace wall main truss is a stable truss structure formed by riveting and welding channel steel, I-shaped steel, angle steel, square steel, channel steel and pipes according to design requirements, the first connecting pieces are riveted and welded on one inner side of the furnace wall main truss in an array manner, and the furnace wall main truss is an outer layer framework of a peripheral wall body of the high-temperature heating furnace;
the furnace top truss is a stable truss structure formed by riveting and welding channel steel, I-shaped steel, angle steel, square steel, channel steel and pipes according to design requirements, the bottom surface of the furnace top truss is connected with the I-shaped steel, and the furnace top truss is an outer layer framework of a top wall body of the high-temperature heating furnace of the furnace;
the inner lining of the furnace wall is specifically a composite ceramic sheet which is fixedly arranged on the ceramic fiber cotton module through a self-locking ceramic nail;
each ceramic fiber surface module is provided with a guide mounting hole, the outer side of each guide mounting hole is a small-diameter through hole, and the diameter of each guide mounting hole is larger than that of each small-diameter through hole;
when the ceramic fiber surface module is used for side wall installation, the inner convex end of the second connecting piece penetrates through the small-diameter through hole, is positioned in the guide installation hole and is in threaded connection with an inner nut, and the outer diameter of the inner nut is larger than that of the small-diameter through hole;
when the ceramic fiber surface module is used for mounting a top wall, a lower thread cylinder of the hoisting outer screw rod penetrates through the small-diameter through hole and then is positioned in the guide mounting hole, and is in threaded connection with an inner nut, and the outer diameter of the inner nut is larger than that of the small-diameter through hole, so that the ceramic fiber cotton module for mounting the top wall is convenient to arrange the hoisting outer screw rod protruding upwards;
the top clamping structure of the hoisting outer screw rod is a crab claw-shaped structure which is symmetrically arranged and provided with an upper convex belt and inner bends, the paired inner bends of the crab claw-shaped structure are respectively supported on the upper surfaces of two sides of a lower cross rod of the connecting I-shaped steel, the hoisting outer screw rod is arranged in a sliding mode along the length direction of the connecting I-shaped steel, and the corresponding position is determined according to the position of the hoisting outer screw rod;
when the composite ceramic plate is installed on the top wall, the self-locking ceramic nail firstly penetrates through the installation hole of the composite ceramic plate, then the composite ceramic plate is inserted into the lower end face of the ceramic fiber cotton module, the surface area of the installation guide hole is covered by the composite ceramic plate, the self-locking ceramic top protrudes outwards after penetrating through the thickness of the ceramic fiber cotton module upwards, and the U-shaped clamp is clamped on the lower end face of the nail point, so that the self-locking ceramic nail on the top wall is prevented from falling off;
the U-shaped clamp is a plane U-shaped clamp formed by processing metal wires or ceramic materials, the width of the U-shaped groove is tightly matched with the diameter of the self-locking ceramic nail, and the depth of the U-shaped groove is larger than the diameter of the self-locking ceramic nail.
The method for installing the module structure wall of the high-temperature heating furnace is characterized by comprising the following steps of: the design requirements of other structures of the high-temperature heating furnace, the position of a fire-spraying opening and a hard fireproof structure nearby the fire-spraying opening are not changed, only the materials, the structures and the installation modes of the peripheral furnace walls and the top furnace wall are changed, the peripheral furnace walls adopt wall modules to replace castable or fireproof bricks adopted by the traditional furnace walls, the wall modules are fixedly installed on the inner sides of main trusses of the furnace walls, and a furnace wall inner protective lining is installed on one side in the furnace of each wall module; the wall body module comprises a shell steel plate, a ceramic fiber cotton felt and a ceramic fiber cotton module from outside to inside in sequence;
the top furnace wall adopts the method that a hoisting outer screw rod slides in from the lower end face of a connecting I-shaped steel at the inner side of a furnace top truss, a ceramic fiber cotton module is installed on the lower surface of the furnace top truss through the hoisting outer screw rod to complete hoisting, then the end face of the I-shaped steel is processed, a ceramic fiber cotton module felt is arranged on the upper layer of the I-shaped steel, and finally a furnace wall inner protective lining is installed on one side in the furnace of the ceramic fiber cotton module;
the construction of a furnace wall main truss and a furnace top truss is completed on the site of a high-temperature heating furnace according to design requirements, then a wall body module is installed, a ceramic fiber cotton module is hoisted, and finally a furnace wall lining is installed.
It is further characterized in that: the wall module, the furnace wall inner protective lining and the outer hoisting screw can be processed into finished products in advance in production bases outside the high-temperature heating furnace field, and the finished products are transported to the field where the high-temperature heating furnace needs to be built and then the furnace wall is built; the types of the ceramic fiber cotton felt and the ceramic fiber cotton module can select commercial products according to the temperature requirement of the high-temperature heating furnace;
the furnace wall inner lining is a series of products described in patent documents CN106839777A, CN103292598A, CN206682111U and CN107726856A, and mainly comprises composite ceramic plates and self-locking ceramic nails, and the furnace wall inner lining is installed on the inner side of the furnace of the wall module and the top ceramic fiber cotton module respectively in an armored manner.
After the technical scheme is adopted, the high-temperature heating furnace can be built quickly and conveniently, and the heat transfer efficiency in the furnace can be greatly improved, the energy is saved, the emission is reduced, the aging process of the furnace wall is slowed down, and the service life of the furnace wall is prolonged. Especially, the utility model changes the refractory castable furnace wall into the refractory castable furnace wall, and has the advantages of reducing the weight of the wall and the floor area of the furnace; meanwhile, the problem of cracks on the wall body is avoided, and the heat dissipation and maintenance cost of the wall body is greatly reduced; the ignition temperature rise and furnace shutdown temperature reduction time is shortened, so that the abnormal production time of the furnace is reduced.
Drawings
FIG. 1 is a schematic cross-sectional view of the top wall of the present invention;
FIG. 2 is a schematic cross-sectional view of the peripheral furnace wall of the present invention;
fig. 3 is a schematic cross-sectional structure diagram of the wall module of the present invention;
FIG. 4 is a schematic view of the installation structure of the outer hoisting screw rod and the connecting I-beam of the present invention;
FIG. 5 is a schematic view of the U-shaped clip and the self-locking ceramic nail of the present invention;
the names corresponding to the sequence numbers in the figure are as follows:
the structure comprises a furnace wall main truss 1, a furnace roof truss 2, a ceramic fiber cotton felt 3, a connecting I-steel 4, a hoisting outer screw rod 5, a ceramic fiber cotton module 6, an inner nut 7, a mounting guide hole 8, a small-diameter through hole 81, a composite ceramic chip 9, a nail tip 91, a self-locking ceramic nail 10, a first connecting piece 11, a wall body module 12, a plane truss 13, a shell steel plate 14, a second connecting piece 15, a cylinder 16, a lower threaded cylinder 17, a necking junction 18, a crab claw-shaped structure 19 and a U-shaped clamp 20.
Detailed Description
A module structure wall body of a high-temperature heating furnace is shown in figures 1-5 and comprises a preset furnace wall main truss 1 and a furnace top truss 2, wherein the bottom surface of the furnace top truss 2 is fixedly provided with corresponding connecting I-beams 4 respectively, the bottoms of the connecting I-beams 4 are hung and connected with a top clamping structure of a hoisting outer screw rod 5,
the upper surface of the ceramic fiber cotton module 6 is uniformly provided with upwards-protruding hoisting outer rods 5, the ceramic fiber cotton module 6 is installed on the lower surface of the furnace roof truss 2 through the hoisting outer rods 5, a gap is reserved between the ceramic fiber cotton module 6 and the lower surface of the connecting I-beam 4, the ceramic fiber cotton felt 3 is laid in a gap area between the ceramic fiber cotton module 6 and the lower surface of the connecting I-beam 4, and a furnace wall inner protective lining is fixedly installed on the lower surface of the ceramic fiber cotton module 6;
the furnace wall main truss structure is characterized in that first connecting pieces 11 are arranged in the furnace wall main truss 1 in an array mode in each peripheral group, the inner sides of the first connecting pieces 11 are fixedly connected with the outer surfaces of wall body modules 12 in corresponding shapes respectively, furnace wall inner protective linings are fixedly arranged on the inner surfaces of the wall body modules 12, and the wall body modules 12 are sequentially provided with shell steel plates 14, ceramic fiber cotton felts 3 and ceramic fiber cotton modules 6 from outside to inside.
A plurality of steel beam frameworks 13 are uniformly distributed in the surface area range of the shell steel plate 14, the inner surfaces of the thicknesses of the adjacent steel beam frameworks 13 are covered with the corresponding shell steel plates 14, the inner end of the thickness of each steel beam framework 13 is fixedly connected with a ceramic fiber cotton module 6 at a corresponding position through a second connecting piece 15, a ceramic fiber cotton felt 3 is filled between the outer surface of the ceramic fiber surface module 6 and the inner surface of the shell steel plate 14, and the inner surface of the ceramic fiber cotton module 6 is fixedly provided with the furnace wall inner protective lining;
the steel beam framework 13 is in a stable plane truss structure formed by riveting and welding angle steel, square steel, flat steel, pipes and the like, the shell steel plate 14 is welded and riveted on the inner side surface area of the steel beam framework, the inner end of the thickness of the steel beam framework 13 is in array riveting or welding with the outer end of the second connecting piece 15, and the inner end of the second connecting piece 15 is fixedly connected with the prime number ceramic fiber cotton module 6 in a corresponding position;
the second connecting piece 15 is a bolt or a screw made of high-temperature resistant materials;
the furnace wall main truss 1 is a stable truss structure formed by riveting and welding channel steel, I-shaped steel, angle steel, square steel, channel steel and pipes according to design requirements, the first connecting pieces 11 are riveted and welded on one inner side of the furnace wall main truss 1 in an array manner, and the furnace wall main truss 1 is an outer layer framework of a peripheral wall body of the high-temperature heating furnace;
the furnace top truss 2 is a stable truss structure formed by riveting and welding channel steel, I-steel, angle steel, square steel, channel steel and pipes according to design requirements, the bottom surface of the furnace top truss 2 is connected with the I-steel 4, and the furnace top truss 2 is an outer layer framework of a top wall of a high-temperature heating furnace of the furnace;
the inner lining of the furnace wall is specifically a composite ceramic sheet 10, and the composite ceramic sheet 10 is fixedly arranged on the ceramic fiber cotton module 6 through a self-locking ceramic nail 9;
each ceramic fiber surface module 6 is provided with a guide mounting hole 8, the outer side of each guide mounting hole 8 is a small-diameter through hole 81, and the diameter of each guide mounting hole 8 is larger than that of the small-diameter through hole 81;
when the ceramic fiber surface module 6 is used for side wall installation, the inner convex end of the second connecting piece 15 penetrates through the small-diameter through hole 81, is positioned in the guide installation hole 8, and is in threaded connection with the inner nut 7, and the outer diameter of the inner nut 7 is larger than that of the small-diameter through hole 81;
when the ceramic fiber surface module 6 is used for mounting a top wall, the lower threaded cylinder 17 of the hoisting outer screw rod 5 penetrates through the small-diameter through hole 81, is positioned in the guide mounting hole 8, and is in threaded connection with the inner nut 7, and the outer diameter of the inner nut 7 is larger than that of the small-diameter through hole 81, so that the hoisting outer screw rod 5 protruding upwards is conveniently arranged above the ceramic fiber cotton module 6 for mounting the top wall;
the top clamping structure of the hoisting outer screw 5 is a crab claw-shaped structure 19 which is symmetrically arranged and provided with an upper convex belt and inner bends, the paired inner bends of the crab claw-shaped structure 19 are respectively supported on the upper surfaces of two sides of the lower cross bar of the connecting I-beam 4, the hoisting outer screw 5 is arranged in a sliding manner along the length direction of the connecting I-beam 4, and the corresponding position is determined according to the position of the hoisting outer screw 5;
the hoisting outer screw rod 5 sequentially comprises a crab claw-shaped structure 19, a cylinder 16, a necking junction 18 and a lower thread cylinder 17 from top to bottom, and the outer diameter of the lower thread cylinder 17 is smaller than that of the cylinder 16, so that the hoisting outer screw rod is convenient to insert in a small-diameter through hole 81;
when the composite ceramic plate 10 is installed on a top wall, the self-locking ceramic nail 9 firstly penetrates through an installation hole of the composite ceramic plate 10, then the composite ceramic plate 10 is inserted into the lower end face of the ceramic fiber cotton module 6, the composite ceramic plate 10 covers the surface area of the installation guide hole 8, the self-locking ceramic nail 9 upwards penetrates through the thickness of the ceramic fiber cotton module 6 and then outwards protrudes out of a nail point 91, and the U-shaped card 20 clamps the lower end face of the nail point 91, so that the self-locking ceramic nail 9 on the top wall is prevented from falling off;
the U-shaped clamp 20 is a plane U-shaped clamp formed by processing metal wires or ceramic materials, the width of a U-shaped groove is tightly matched with the diameter of the self-locking ceramic nail 9, and the depth of the U-shaped groove is larger than the diameter of the self-locking ceramic nail.
The method for installing the module structure wall of the high-temperature heating furnace is characterized by comprising the following steps of: the design requirements of other structures of the high-temperature heating furnace, the position of a fire-spraying opening and a hard fireproof structure nearby the fire-spraying opening are not changed, only the materials, the structures and the installation modes of the peripheral furnace walls and the top furnace wall are changed, the peripheral furnace walls adopt wall modules to replace castable or fireproof bricks adopted by the traditional furnace walls, the wall modules are fixedly installed on the inner sides of main trusses of the furnace walls, and a furnace wall inner protective lining is installed on one side in the furnace of each wall module; the wall body module comprises a shell steel plate, a ceramic fiber cotton felt and a ceramic fiber cotton module from outside to inside in sequence;
the top furnace wall adopts the method that a hoisting outer screw rod slides in from the lower end face of a connecting I-shaped steel at the inner side of a furnace top truss, a ceramic fiber cotton module is installed on the lower surface of the furnace top truss through the hoisting outer screw rod to complete hoisting, then the end face of the I-shaped steel is processed, a ceramic fiber cotton module felt is arranged on the upper layer of the I-shaped steel, and finally a furnace wall inner protective lining is installed on one side in the furnace of the ceramic fiber cotton module;
the construction of a furnace wall main truss and a furnace top truss is completed on the site of a high-temperature heating furnace according to design requirements, then a wall body module is installed, a ceramic fiber cotton module is hoisted, and finally a furnace wall lining is installed.
The wall module, the furnace wall inner protective lining and the outer hoisting screw can be processed into finished products in advance in production bases outside the high-temperature heating furnace field, and the finished products are transported to the field where the high-temperature heating furnace needs to be built and then the furnace wall is built; the types of the ceramic fiber cotton felt and the ceramic fiber cotton module can select commercial products according to the temperature requirement of the high-temperature heating furnace;
the furnace wall inner lining is a series of products described in patent documents CN106839777A, CN103292598A, CN206682111U and CN107726856A, and mainly comprises composite ceramic plates and self-locking ceramic nails, and the furnace wall inner lining is installed on the inner side of the furnace of the wall module and the top ceramic fiber cotton module respectively in an armored manner.
After the technical scheme is adopted, the high-temperature heating furnace can be built quickly and conveniently, and the heat transfer efficiency in the furnace can be greatly improved, the energy is saved, the emission is reduced, the aging process of the furnace wall is slowed down, and the service life of the furnace wall is prolonged. Especially, the utility model changes the refractory castable furnace wall into the refractory castable furnace wall, and has the advantages of reducing the weight of the wall and the floor area of the furnace; meanwhile, the problem of cracks on the wall body is avoided, and the heat dissipation and maintenance cost of the wall body is greatly reduced; the ignition temperature rise and furnace shutdown temperature reduction time is shortened, so that the abnormal production time of the furnace is reduced.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. A modular structure wall body of a high temperature heating furnace, it is including furnace wall main truss, the furnace roof truss of predetermineeing, its characterized in that: the furnace roof truss structure is characterized in that corresponding connecting H-beams are fixedly arranged on the bottom surface of the furnace roof truss respectively, the bottom of each connecting H-beam is hung with a top clamping structure of a hoisting outer screw rod, the upper surface of a ceramic fiber cotton module is uniformly provided with the hoisting outer screw rods which protrude upwards, the ceramic fiber cotton module is arranged on the lower surface of the furnace roof truss through the hoisting outer screw rods, a gap is reserved between the ceramic fiber cotton module and the lower surface of the connecting H-beam, a ceramic fiber cotton felt is laid in a gap area between the ceramic fiber cotton module and the lower surface of the connecting H-beam, and a furnace wall inner protective lining is fixedly arranged on the lower surface of the ceramic; the furnace wall main truss structure comprises a furnace wall main truss, furnace wall inner trusses and wall modules, wherein the furnace wall main truss structure comprises a plurality of groups of furnace wall inner trusses, the furnace wall inner trusses are arranged in the furnace wall main truss structure, the furnace wall inner trusses are arranged on the inner sides of the furnace wall main trusses, first connecting pieces are arranged in the furnace wall inner trusses in an array mode, the inner sides of the first connecting pieces are fixedly connected with the outer surfaces of the wall modules in corresponding shapes respectively, furnace.
2. A modular construction wall of a high temperature heating furnace according to claim 1, characterized in that: the furnace wall lining is characterized in that a plurality of steel beam frameworks are uniformly distributed in the surface area range of the outer shell steel plate, the inner surfaces of the thicknesses of the adjacent steel beam frameworks are covered with the corresponding outer shell steel plates, the inner end of the thickness of each steel beam framework is fixedly connected with a ceramic fiber cotton module at the corresponding position through a second connecting piece, a ceramic fiber cotton felt is filled between the outer surface of each ceramic fiber surface module and the inner surface of each outer shell steel plate, and the inner surface of each ceramic fiber cotton module is fixedly provided with the furnace wall lining.
3. A modular construction wall of a high temperature heating furnace according to claim 2, characterized in that: the steel beam framework is in a stable plane truss structure by riveting and welding angle steel, square steel, flat steel, pipes and the like, the shell steel plate is welded and riveted in the inner side surface area, the inner end of the thickness of the steel beam framework is riveted or welded with the outer end of the second connecting piece in an array mode, and the inner end of the second connecting piece is fixedly connected with a ceramic fiber cotton module in a corresponding position.
4. A modular construction wall of a high temperature heating furnace according to claim 3, characterized in that: the second connecting piece is specifically a bolt or a screw made of high-temperature resistant materials.
5. A modular construction wall of a high temperature heating furnace according to claim 1, characterized in that: the furnace wall main truss is of a stable truss structure formed by riveting and welding channel steel, I-shaped steel, angle steel, square steel, channel steel and pipes according to design requirements, the first connecting pieces are riveted and welded on one inner side of the furnace wall main truss in an array mode, and the furnace wall main truss is an outer layer framework of the peripheral wall body of the high-temperature heating furnace.
6. A modular construction wall of a high temperature heating furnace according to claim 1, characterized in that: the furnace top truss is characterized in that channel steel, I-shaped steel, angle steel, square steel, channel steel and pipes are selected according to design requirements and are riveted and welded to form a stable truss structure, the bottom surface of the furnace top truss is connected with the I-shaped steel, and the furnace top truss is an outer layer framework of a top wall body of the high-temperature heating furnace of the furnace.
7. A modular construction wall of a high temperature heating furnace according to claim 1, characterized in that: the inner lining of the furnace wall is specifically a composite ceramic sheet which is fixedly arranged on the ceramic fiber cotton module through a self-locking ceramic nail.
8. A modular construction wall of a high temperature heating furnace according to claim 1, characterized in that: each ceramic fiber surface module is provided with a guide mounting hole, the outer side of each guide mounting hole is a small-diameter through hole, and the diameter of each guide mounting hole is larger than that of each small-diameter through hole.
9. The modular structure wall of the high-temperature heating furnace according to claim 1, wherein the top clamping structure of the outer hoisting screw is a crab claw-shaped structure with symmetrically arranged upper convex belts and inner bends, the paired inner bends of the crab claw-shaped structure are respectively supported on the upper surfaces of two sides of the lower cross bar of the connecting I-beam, the outer hoisting screw is slidably arranged along the length direction of the connecting I-beam, and the corresponding position is determined according to the position of the outer hoisting screw.
10. A modular construction wall of a high temperature heating furnace according to claim 7, characterized in that: when the composite ceramic plate is installed on the top wall, the self-locking ceramic nail firstly penetrates through the installation hole of the composite ceramic plate, then the composite ceramic plate is inserted into the lower end face of the ceramic fiber cotton module, the surface area of the installation guide hole is covered by the composite ceramic plate, the self-locking ceramic top protrudes outwards after penetrating through the thickness of the ceramic fiber cotton module upwards, and the U-shaped clamp is clamped on the lower end face of the nail tip.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110455082A (en) * | 2019-09-10 | 2019-11-15 | 日上(苏州)轻化纺高科技有限公司 | A kind of modular structure wall and installation method of high-temperature heater |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110455082A (en) * | 2019-09-10 | 2019-11-15 | 日上(苏州)轻化纺高科技有限公司 | A kind of modular structure wall and installation method of high-temperature heater |
| WO2021047268A1 (en) * | 2019-09-10 | 2021-03-18 | 日上(苏州)轻化纺高科技有限公司 | Modular structure wall body for high-temperature heating furnace and mounting method |
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